Metal-Free Hydroarylation of Alkynes: A Very Convenient, Simple Procedure for Substituted Arylalkenes.

SYNTHESIS 2008, No. 23, pp 3755–3760xx.xx.2008 Advanced online publication: 06.11.2008 DOI: 10.1055/s-0028-1083635; Art ID: F15508SS © Georg Thieme Verlag Stuttgart · New York Abstract: Hydroarylation of aryl-substituted alkynes with simple and substituted arenes was conducted in the presence of trifluoroacetic acid in dichloromethane without any metal catalysts or additives. Electron-rich arenes coupled with aryl-substituted alkynes to give 1,1-diarylalkenes in good to high yields.